Important questions of ac class 12
1.Why is the use of AC voltage preferred over DC voltage? Give two reasons. [All India 2014] Ans.The use of AC voltage is preferred over DC voltage because of (i) the loss of energy in transmitting the AC voltage over long distances with the help of step-up transformers is negligible as compared to … Zobacz więcej 10.A light bulb is rated 150 W for 220 V AC supply of 60 Hz. Calculate 1. the resistance of the bulb 2. the rms current through the … Zobacz więcej 13. (i) When an AC source is connected to an ideal capacitor, then show that the average power supplied by the source over a complete cycle is zero. (ii) A lamp is connected in … Zobacz więcej
Important questions of ac class 12
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WitrynaClass 12 trigonometry most important formulas Neb class 12 trigonometry important questions. Witryna3 paź 2024 · Answer: (c) Q.4. According to Faraday’s law of electromagnetic induction. (a) electric field is produced by time varying magnetic flux. (b) magnetic field is produced by time varying electric flux. (c) magnetic field is …
WitrynaThe NCERT Solutions for Class 12 Physics Chapter 7 Alternating Current is provided here to assist the students in understanding the concepts thoroughly. Chapter 7 of NCERT Solutions for Class 12 Physics give answers to the questions asked in the textbook comprehensively. These solutions are prepared by individual subject-matter … Witryna25 mar 2024 · Best Air Conditioner Frequently Asked Question (FAQs) Nowadays air conditioning machines have become essential to be installed in the house, …
WitrynaWelcome to our YouTube video on "Important Questions on Differentiation with concepts" for Maths class 12th. In this video, we'll be discussing some of the m... Witryna9 cze 2024 · Solution: Question 12. When an AC voltage of 220 V is applied to the capacitor C. (a) the maximum voltage between plates is 220 V. (b) the current is in phase with the applied voltage. (c) the charge on the plates is in phase with the applied voltage. (d) the power delivered to the capacitor is zero.
WitrynaThe opposition offered by an AC circuit containing more than one out of three components L, C and R, is called impedance (Z) of the circuit. Impedance of an AC …
WitrynaClass 12 Accounts (session 2024-24) paper by CBSE will be of 80 marks. In this video A+STUDY YT sir will covering : Important questions on trading a/c ,p&l ... phillip screwsWitryna10 kwi 2024 · CBSE Class 10th and 12th assessment scheme for board exam 2024 has been changed. Weightage of MCQs and Competency Based Questions is increased … phillip screw headWitryna22 sty 2024 · Question 9. ‘Secondary activities add value to natural resources.’. Explain with two examples. Answer: Secondary activities add value to natural resources by transforming raw materials into more usable products. Most of the materials from the farm, forest, mine and the sea are transformed into valuable products. phillip screws inventedWitrynaElectromagnetic Induction Physics Practice questions, MCQs, Past Year Questions (PYQs), NCERT Questions, Question Bank, Class 11 and Class 12 Questions, NCERT Exemplar Questions and PDF Questions with answers, solutions, explanations, NCERT reference and difficulty level. 8527521718; Online Support; Menu. phillips crossing the riverWitrynaGet answers to the most common queries related to the CBSE Class 12 Examination Preparation. What will happen if you mix AC and DC Current? Why is DC not used in … phillips crosshead screwdriverWitrynaAC is the form of current that are mostly used in different appliances. Some of the examples of alternating current include audio signal, radio signal, etc. An alternating current has a wide advantage over DC as AC is able to transmit power over large distances without great loss of energy. phillips cullybackeyWitryna24 kwi 2024 · 1. The average value of alternating current measured in complete cycle is zero. 2. The average value of alternating current measured in half cycle … phillips cross reference for pl lampd